Insulated power cable and winding and braiding equipment thereof

Abstract

The present invention relates to the field of cable technology, and provides an insulated power cable and its winding and braiding equipment, including: a conductor, and a functional area and a coating layer on its outer side to form a cable area; an inner protective belt is provided inside the functional area, located at the inner circle position and attached to the conductor, and cooperates with the outer protective belt of the outer circle to form a barrier to external forces to prevent direct action on the conductor, so as to maintain the structural stability of the conductor; a sealing layer is provided on the outer side of the outer protective belt, and cooperates with the elastic protrusions on both sides thereof, so that after the outer protective belt is wound and laid, the adjacent functional areas contact each other to form a seal, so as to block the external insulating material so that the functional area maintains the structural integrity of the internal components. The cable proposed by the present invention can prevent the external force from directly affecting the inner layer structure of the cable, so that its structure remains intact to avoid deformation and damage, and the production equipment can make the structure of the cable functional, adapt to different use environments and increase the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically, to an insulated power cable and a winding and braiding device thereof. Background Art

[0002] Insulated power cable refers to a cable with insulating material wrapped around the outside of the conductor, which is used for power transmission and distribution. Its main function is to transmit electrical energy from one place to another while preventing current leakage or interference with other equipment. It has good insulation performance, stable electrical performance, high cable strength, strong corrosion resistance, good flame retardancy and easy installation. It is widely used in urban power grids, mines, factories and other places;

[0003] At present, in the actual application of insulated power cables, it is found that the outer side of the cable is usually an integrally formed insulating material coating structure. When affected by the external environment and external forces, the negative impact will be directly transmitted inward, which can easily cause the conductor to be damaged, affecting the performance and life, and is not conducive to the stable operation of the equipment used;

[0004] In order to solve the above problems, the present application proposes an insulated power cable and a winding and braiding device thereof. Summary of the invention

[0005] The object of the present invention is to provide an insulated power cable and its winding and braiding equipment, which can effectively solve the problem proposed in the above background technology that the outer side of the cable is usually an integrally formed insulating material covering structure, which will directly transmit the negative influence inward when affected by the external environment and external forces, easily causing damage to the conductor core, affecting the performance and life, and is not conducive to the stable operation of the equipment used.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An insulated power cable comprises: a conductor, and a functional area and a coating layer on the outer side thereof forming a cable area; an inner protective belt is provided inside the functional area, located at an inner ring position and attached to the conductor, and cooperates with the outer protective belt on the outer ring to form a barrier to prevent external forces from directly acting on the conductor, so as to maintain the structural stability of the conductor;

[0008] A sealing layer is provided on the outside of the outer protective belt, which cooperates with the elastic protrusions on both sides thereof. After the outer protective belt is wrapped and laid, adjacent functional areas contact each other to form a seal, so as to block external insulating materials so that the functional areas maintain the structural integrity of the internal components.

[0009] Through the above technical solution, a functional area is added inside the cable sheath structure, so that the cable has rich usage functions and can adapt to different usage environments. At the same time, it forms a protective effect against external forces to prevent direct effects on the inner structure, thereby ensuring the structural stability of the cable conductor and facilitating stable transmission operations.

[0010] As a further optimization of the present invention, a lower support is provided at the middle position of the inner side of the outer protection belt, which is connected to the inside of the positioning seat adjacent to the outer side of the inner protection belt.

[0011] As a further optimization of the present invention, lower buffer blocks are provided on both sides of the lower support to abut against the inner wall of the positioning seat groove, and a guide slope is formed in the bottom area to facilitate docking and paving.

[0012] As a further optimization of the present invention, an upper buffer block is further provided on the inner side of the outer protection belt, and is located on both sides of the outer protection belt to form a symmetrical distribution.

[0013] As a further optimization of the present invention, a limiting protrusion is further provided on the outer side of the inner protection belt, and adjacent limiting protrusions are distributed on both sides of the lower buffer block to form a butt joint to form a buffering effect against external force.

[0014] As a further optimization of the present invention, the cooperation of the inner protection belt and the outer protection belt is also used to replace the integrated insulation coating structure, thereby saving production costs.

[0015] A winding and braiding device is used to produce an insulated power cable as described above. During production, an inner protective belt and an outer protective belt are used for winding operations, comprising: a stand, and a first winding mechanism and a second winding mechanism oppositely distributed above the stand to form an equipment area; utilizing the opposite distribution of the stand and the first winding mechanism, the inner protective belt and the outer protective belt are sequentially wound and laid, so that the outer protective belt is directly laid on the outside of the inner protective belt, forming a shaping and limiting effect on it.

[0016] Through the above technical solution, the inner protection belt and the outer protection belt are installed inside the cable, thereby achieving the effect of enriching the cable structure.

[0017] As a further optimization of the present invention, a first speed control seat and a second speed control seat are provided at the upper end of the stand, and differential rotation is formed at both ends of the conductor through the speed control rollers inside the seat, so that the conductor between the first speed control seat and the second speed control seat remains in a straightened state, preventing it from being deviated by the winding force of the inner protection belt and the outer protection belt.

[0018] As a further optimization of the present invention, the second winding mechanism is equipped with an outer protective belt that is laid by extrusion strips through the inner bracket and the outer positioning ribs.

[0019] As a further optimization of the present invention, when the outer protection belt is conveyed, the extrusion strip forms a circumferential extrusion force, so that the outer protection belt and the inner protection belt are extruded and shaped.

[0020] Beneficial effects of the present invention:

[0021] The present invention utilizes the cooperation of the outer protection belt and the inner protection belt to block the external force during the use of the cable and cooperates with the displacement between the buffer block and the limiting protrusion to form a force unloading effect, so that the external force cannot affect the inside of the cable, ensuring the stability of the internal structure of the cable, so as to maintain the stable operation state of the equipment;

[0022] In addition, the winding arrangement of the outer protective belt can make the adjacent elastic protrusions contact each other to form a seal, so as to isolate the external insulating material and form a functional area inside the cable to improve the performance of the cable and improve the use effect according to different environmental requirements;

[0023] The present invention uses the first winding mechanism and the second winding mechanism arranged opposite to each other, and utilizes the different rotation speeds of the speed-controlled rollers in the second speed-controlled seat and the first speed-controlled seat, so that the conductor is kept in a straightened state under normal conveying conditions when the inner and outer protection belts are wound, so as to prevent the pulling force generated during the winding operation from causing the conductor to deform, thereby ensuring its stable state during the conveying operation and facilitating the use of subsequent production processes such as extrusion operations.

[0024] In addition, by utilizing the extrusion strip to extrude the outer protective belt, the lower support can be pressed into the interior of the positioning seat to form a docking connection after it is wrapped and coated. In this way, the outer protective belt is utilized to limit the inner protective belt so that it maintains a stable coating structure. At the same time, the increased extrusion force is utilized to increase the friction resistance between the inner protective belt and the conductor to form a limit, thereby replacing the traditional glue bonding method, saving production costs while having a simple structure and facilitating use in efficient production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the overall appearance of the three-dimensional structure of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the cable area;

[0028] Figure 3 for Figure 1 A schematic diagram of the internal structure of one end of the cable area;

[0029] Figure 4 for Figure 1 Schematic diagram of the functional area component composition state structure;

[0030] Figure 5 It is a schematic diagram of the overall appearance of the present invention in a planar state;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the extruded strip part;

[0032] Figure 7 for Figure 5 A schematic diagram of the internal structure of the first speed control seat;

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] In the figure: 1. Equipment area; 2. Cable area;

[0035] 101, stand; 102, first winding mechanism; 103, second winding mechanism; 104, first speed control seat; 105, second speed control seat; 106, extrusion strip; 107, bracket; 108, positioning rib;

[0036] 1041, speed control roller;

[0037] 201, conductor; 202, coating layer; 203, functional area; 204, inner protection belt; 205, outer protection belt; 206, sealing layer; 207, elastic protrusion;

[0038] 2041, positioning seat; 2042, limiting protrusion;

[0039] 2051, lower support; 2052, lower buffer block; 2053, guide slope; 2054, upper buffer block. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-7 The present invention provides an insulated power cable and a winding and braiding device thereof.

[0042] Reference Figure 1 and Figure 2, an insulated power cable, comprising: a conductor 201, and a functional area 203 and a coating layer 202 outside the conductor 201 forming a cable area 2;

[0043] An inner protection band 204 is provided inside the functional area 203, which is located at the inner circle and fits the conductor 201, and cooperates with the outer protection band 205 of the outer circle to block the external force and prevent it from directly acting on the conductor 201, so as to maintain the structural stability of the conductor 201;

[0044] A sealing layer 206 is provided on the outside of the outer protective belt 205, which cooperates with the elastic protrusions 207 on both sides thereof. After the outer protective belt 205 is wrapped and laid, the adjacent functional areas 203 contact each other to form a seal, so as to block the external insulating material so that the functional area 203 maintains the structural integrity of the internal components.

[0045] This embodiment provides a cable structure with rich functions. The inner protection belt 204 and the outer protection belt 205 cooperate to form the functional area 203, so that the cable forms a barrier effect when encountering external force, preventing direct action on the inner layer structure, thereby ensuring the stability of the conductor and preventing the conductor from being deformed or damaged.

[0046] In addition, this arrangement allows the inner protection belt 204 and the outer protection belt 205 to replace the integrated insulation coating structure, which can greatly save the use of insulation materials and achieve the effect of saving materials and reducing production costs.

[0047] Reference Figure 4 A lower support 2051 is provided at the middle position of the outer side of the inner protection belt 204 , and a lower support 2051 is provided at the middle position of the inner side of the outer protection belt 205 , which is docked with the grooves between adjacent positioning seats 2041 .

[0048] Reference Figure 4 , lower buffer blocks 2052 are provided on both sides of the lower support 2051 to resist the inner wall of the groove of the positioning seat 2041, and a guide slope 2053 is formed in the bottom area. When the lower support 2051 is pressed down, it is automatically positioned to the middle position of the adjacent lower support 2051, which is convenient for docking with the groove for paving operations.

[0049] Reference Figure 4 An upper buffer block 2054 is also provided on the inner side of the outer protective belt 205, and a limiting protrusion 2042 is also provided on the outer side of the inner protective belt 204. Adjacent limiting protrusions 2042 are distributed on both sides of the lower buffer block 2052 to form a docking to form a buffering effect against external force. In addition, the upper buffer block 2054 and the adjacent limiting protrusions 2042 are distributed on both sides of the outer protective belt 205 and the inner protective belt 204 to form symmetry.

[0050] Reference Figure 1 and Figure 5, a winding and braiding device, for producing an insulated power cable as described above, using an inner protective tape 204 and an outer protective tape 205 for winding during production, comprising:

[0051] The stand 101 and the first winding mechanism 102 and the second winding mechanism 103 oppositely distributed above it form an equipment area 1;

[0052] By utilizing the opposite distribution of the stand 101 and the first winding mechanism 102, the inner protection belt 204 and the outer protection belt 205 are sequentially wound and laid, so that the outer protection belt 205 is directly laid on the outside of the inner protection belt 204, forming a shaping and limiting effect thereon.

[0053] Reference Figure 1 and Figure 7 A first speed control seat 104 and a second speed control seat 105 are provided at the upper end of the stand 101, and a differential rotation is formed at both ends of the conductor 201 through the speed control roller 1041 inside it, so that the conductor 201 between the first speed control seat 104 and the second speed control seat 105 remains in a straightened state to prevent it from being deviated by the winding force of the inner protection belt 204 and the outer protection belt 205.

[0054] Reference Figure 5 and Figure 6 The second winding mechanism 103 is installed with the extrusion strip 106 through the inner bracket 107 and the outer positioning rib 108 to extrude and wrap the outer protective belt 205 after laying.

[0055] Reference Figure 5 and Figure 6 When the outer protection belt 205 is transported, the extrusion strip 106 forms a circumferential extrusion force, so that the outer protection belt 205 and the inner protection belt 204 are extruded and shaped.

[0056] To sum up, when the first winding mechanism 102 and the second winding mechanism 103 are used for conveying before the extrusion process of the conductor 201, the rolled inner protective belt 204 and the outer protective belt 205 are released in turn and laid on the outside of the conductor 201, and the lower support 2051 is docked with the positioning seat 2041, and under the action of the extrusion strip 106, the inner protective belt 204 and the outer protective belt 205 are extruded and shaped, so that the functional area 203 can be formed to follow the conductor 201 and perform the extrusion operation at the same time, and finally the second winding mechanism 103 is formed in the outer ring area to produce a complete cable.

[0057] It can be understood that the cable proposed in the present invention can prevent external forces from directly affecting the inner structure of the cable, thereby keeping its structure intact and avoiding deformation and damage. At the same time, the production equipment can make the cable structure functional, adapt to different usage environments and increase its service life.

[0058] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicate orientation or positional relationship, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0059] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An insulated power cable, characterized in that: include: The conductor, the functional area and the coating layer outside it form the cable area; An inner protective belt is provided inside the functional area, which is located at the inner circle and fits the conductor, and cooperates with the outer protective belt of the outer circle to block the external force and prevent it from directly acting on the conductor, so as to maintain the structural stability of the conductor; The outer side of the outer protective belt is provided with a sealing layer, which cooperates with the elastic protrusions on both sides thereof. After the outer protective belt is wound and laid, the adjacent functional areas contact each other to form a seal, so as to block the external insulating material so that the functional area maintains the structural integrity of the internal components; A lower support is provided at the middle position of the inner side of the outer protection belt, and is connected to the inner side of the positioning seat adjacent to the outer side of the inner protection belt; The lower support is provided with lower buffer blocks on both sides to abut against the inner wall of the positioning seat groove, and a guide slope is formed in the bottom area to facilitate docking and paving; An upper buffer block is also provided on the inner side of the outer protection belt, which is symmetrically distributed on both sides of the outer protection belt; The outer side of the inner protection belt is also provided with a limiting protrusion, and adjacent limiting protrusions are distributed on both sides of the lower buffer block to form a butt joint to form a buffering effect against external force.

2. An insulated power cable according to claim 1, characterized in that: The cooperation of the inner protection belt and the outer protection belt is also used to replace the integrated insulation coating structure, thereby saving production costs.

3. A winding and braiding device for producing an insulated power cable as claimed in any one of claims 1 to 2, wherein an inner protective tape and an outer protective tape are used for winding during production, characterized in that: include: The stand, and the first winding mechanism and the second winding mechanism oppositely distributed above the stand form an equipment area; By utilizing the opposite distribution of the second winding mechanism and the first winding mechanism, the inner protection belt and the outer protection belt are sequentially wound and laid, so that the outer protection belt is directly laid on the outer side of the inner protection belt, forming a fixed position limiting effect on it; A first speed control seat and a second speed control seat are provided at the upper end of the stand, and differential rotation is formed at both ends of the conductor through the speed control rollers inside the seat, so that the conductor between the first speed control seat and the second speed control seat remains in a straightened state to prevent it from being deviated by the winding force of the inner protection belt and the outer protection belt.

4. A winding and braiding device according to claim 3, characterized in that: The second winding mechanism is equipped with an outer protective belt that is extruded, wound and laid by an extrusion strip through an inner bracket and an outer positioning rib.

5. The winding and braiding device according to claim 3, characterized in that: When the outer protection belt is conveyed, the extrusion strip forms a circumferential extrusion force, so that the outer protection belt and the inner protection belt are extruded and shaped.

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